Test context builders

Across Test comes with a set of helpers for integration testing an Across module with all its dependencies.
Main access point is the AcrossTestBuilders class that will provide you with either an AcrossTestContextBuilder or AcrossTestWebContextBuilder.
The latter should be used if you want to simulate a web container environment.

Both builder implementations provide a fluent api for easily configuring an AcrossContext and setting application properties.
See the javadoc for all different configuration options.
Upon building the AcrossContext will be bootstrapped and an instance of AcrossTestContext will be returned.
AcrossTestContext (and the extending AcrossTestWebContext) wraps around the bootstrapped AcrossContext and provides easy querying of the bootstrapped context.
In addition AcrossTestContext implements Closeable that shuts down the context, easy for using with try-with-resources.

In a web scenario the AcrossTestWebContextBuilder should be used.
This will ensure a MockAcrossServletContext is being used and return an AcrossTestWebContext.
The AcrossTestWebContext provides access to the MockAcrossServletContext and a MockMvc bean that is instantiated with all filters registered by the modules.